/ Dictionary / Index O onomasiology: Meaning and Definition of Find definitions for: on•o•ma•si•ol•o•gy Pronunciation: (on"u-mā"sē-ol'u-jē, -mā"zē-), [key] — n. the study of the means of expressing a given concept. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. onnagata onomastic Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language